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Bill

SB 1156

Relating to: contributions by corporations, cooperative associations, labor organizations, and federally recognized American Indian Tribes.

2025-2026 Regular Session Introduced by Tim Carpenter and 5 co-sponsors

Wisconsin bill restricting corporate, labor, and tribal political contributions failed to pass in 2026; raises campaign finance regulation and free speech concerns.

Failed to pass pursuant to Senate Joint Resolution 1
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Bill Summary · SB 1156

Legislative bill overview

SB 1156 would regulate or restrict contributions to political campaigns and candidates by corporations, cooperative associations, labor organizations, and federally recognized American Indian tribes in Wisconsin. The bill was introduced in March 2026 but failed to advance, receiving no committee action before the legislative session ended.

Why is this important

Campaign finance rules directly shape political influence and fundraising dynamics. Changes to who can contribute money and in what amounts affect electoral competitiveness, candidate accessibility to funding sources, and the perceived balance of power between different stakeholder groups in state politics.

Potential points of contention

  • Constitutionality concerns: Federal and state courts have struck down many campaign contribution restrictions under free speech grounds (Citizens United precedent); any new restrictions face high legal hurdles
  • Asymmetrical impact on interest groups: Labor organizations, corporations, and tribal entities may be affected differently depending on restriction specifics, raising fairness questions about which groups gain or lose political voice
  • Enforcement and definition challenges: Determining what constitutes a prohibited contribution versus allowed activity (like independent spending) is legally complex and administratively difficult

Compiled from official sources — confirm details with the bill’s official record.

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